YouTube is launching a paid subscription model for some channels. No, you won’t have to pay to watch the latest cat laser video or upload your house tour, but you can subscribe to tune into Fraggle Rock or the Ultimate Fighting Championship.

Interested to see how this new paid model takes off in coming months? Well, perhaps you can track its success via the site’s YouTube Trends Map which lets you know what videos are popular by city in the US. Results can be filtered by sex, age, and viewed vs shared. It’s really interesting to see how regions tie together and how different videos capture the imagination of a demographic. Of course, often one inane video is swamping the whole country such as today’s Charles Ramsey Songified, but there are surprises, such as the popularity of the video of David Foster Wallace’s commencement address This is Water.